<template>
	<view v-if="tabBarList && tabBarList.list">
		<view class="tab-bar" :style="{ backgroundColor: tabBarList.backgroundColor }">
			<view class="tabbar-border"></view>
			<view class="item" v-for="(item, index) in tabBarList.list" :key="item.id" @click="redirectTo(item.link)">
				<view class="bd">
					<block v-if="item.link.wap_url == '/pages/goods/cart'">
						<view class="icon" v-if="tabBarList.type == 1 || tabBarList.type == 2"
							:animation="cartAnimation" id="tabbarCart">
							<block v-if="verify(item.link)">
								<image v-if="item.selected_icon_type == 'img'"
									:src="$util.img(item.selectedIconPath)" />
								<diy-icon v-if="item.selected_icon_type == 'icon'" :icon="item.selectedIconPath"
									:value="item.selected_style ? item.selected_style : null"></diy-icon>
							</block>
							<block v-else>
								<image v-if="item.icon_type == 'img'" :src="$util.img(item.iconPath)" />
								<diy-icon v-if="item.icon_type == 'icon'" :icon="item.iconPath"
									:value="item.style ? item.style : null"></diy-icon>
							</block>
							<view class="cartNumberBtn font-size-activity-tag"
								:class="{ max: item.link.wap_url == '/pages/goods/cart' && cartNumber > 99 }"
								:style="{ background: 'var(--price-color)' }" v-if="cartNumber > 0">
								{{ cartNumber > 99 ? '99+' : cartNumber }}
							</view>
						</view>
					</block>
					<block v-else>
						<view class="icon" v-if="tabBarList.type == 1 || tabBarList.type == 2">
							<block v-if="verify(item.link)">
								<image v-if="item.selected_icon_type == 'img'"
									:src="$util.img(item.selectedIconPath)" />
								<diy-icon v-if="item.selected_icon_type == 'icon'" :icon="item.selectedIconPath"
									:value="item.selected_style ? item.selected_style : null"></diy-icon>
							</block>
							<block v-else>
								<image v-if="item.icon_type == 'img'" :src="$util.img(item.iconPath)" />
								<diy-icon v-if="item.icon_type == 'icon'" :icon="item.iconPath"
									:value="item.style ? item.style : null"></diy-icon>
							</block>
						</view>
					</block>
					<view class="label"
						v-if="(tabBarList.type == 1 || tabBarList.type == 3) && tabBarList.theme == 'diy'"
						:style="{ color: verify(item.link) ? tabBarList.textHoverColor : tabBarList.textColor }">
						{{ item.text }}
					</view>
					<view class="label"
						v-if="(tabBarList.type == 1 || tabBarList.type == 3) && tabBarList.theme == 'default'"
						:style="{ color: verify(item.link) ? 'var(--base-color)' : '#333333' }">
						{{ item.text }}
					</view>
				</view>
			</view>
		</view>
		<!-- 解决fixed定位后底部导航栏塌陷问题 -->
		<view class="tab-bar-placeholder"></view>
	</view>
</template>

<script>
	export default {
		name: 'diy-bottom-nav',
		props: {
			value: {
				type: Object
			},
			name: {
				type: String,
				default: ''
			}
		},
		data() {
			return {
				currentRoute: '', //当前页面路径
				jumpFlag: true, //是否可以跳转，防止重复点击
				cartAnimation: {}
			};
		},
		mounted() {
			let currentPage = getCurrentPages()[getCurrentPages().length - 1];
			this.currentRoute = currentPage.route;
			this.$store.dispatch('getCartNumber');
			this.$nextTick(() => {
				if (!this.$store.state.cartPosition) {
					let query = uni.createSelectorQuery().in(this);
					setTimeout(() => {
						query
							.select('#tabbarCart')
							.boundingClientRect(data => {
								if (data) this.$store.commit('setCartPosition', data);
							})
							.exec();

						query
							.select('.tab-bar')
							.boundingClientRect(data => {
								if (data) this.$store.commit('setTabBarHeight', data.height +
									'px');
							})
							.exec();
					}, 2000);
				}
			});
		},
		computed: {
			cartNumber() {
				return this.$store.state.cartNumber;
			},
			cartChange() {
				return this.$store.state.cartChange;
			}
		},
		watch: {
			cartChange: function(nval, oval) {
				if (nval > oval) {
					let animation = uni.createAnimation({
						duration: 200,
						timingFunction: 'ease'
					});
					animation.scale(1.2).step();
					this.cartAnimation = animation.export();
					setTimeout(() => {
						animation.scale(1).step();
						this.cartAnimation = animation.export();
					}, 300);
				}
			}
		},
		methods: {
			redirectTo(link) {
				this.$emit('callback');
				this.$util.diyRedirectTo(link);
			},
			verify(link) {
				if (link == null || link == '' || !link.wap_url) return false;
				if (this.name) {
					var url = this.currentRoute + '?name=' + this.name;
				} else {
					var url = this.currentRoute;
				}

				// 首页特殊处理
				if (link.wap_url == '/pages/index/index' && this.name == 'DIY_VIEW_INDEX') {
					return true;
				} else if (url && link.wap_url.indexOf(url) != -1) {
					return true;
				}
				return false;
			}
		}
	};
</script>

<style lang="scss">
	.placeholder {
		height: 112rpx;

		&.bluge {
			height: 180rpx;
		}
	}

	.safe-area {
		padding-bottom: 0;
		padding-bottom: constant(safe-area-inset-bottom);
		padding-bottom: env(safe-area-inset-bottom);
	}

	.tab-bar {
		background-color: #fff;
		box-sizing: border-box;
		position: fixed;
		left: 0;
		bottom: 0;
		width: 100%;
		z-index: 998;
		display: flex;
		border-top: 2rpx solid #f5f5f5;
		padding-bottom: 0;
		padding-bottom: constant(safe-area-inset-bottom);
		padding-bottom: env(safe-area-inset-bottom);

		.tabbar-border {
			background-color: rgba(255, 255, 255, 0.329412);
			position: absolute;
			left: 0;
			top: 0;
			width: 100%;
			height: 2rpx;
			-webkit-transform: scaleY(0.5);
			transform: scaleY(0.5);
		}

		.item {
			display: flex;
			align-items: center;
			-webkit-box-orient: vertical;
			-webkit-box-direction: normal;
			flex: 1;
			flex-direction: column;
			padding-bottom: 10rpx;
			box-sizing: border-box;

			.bd {
				position: relative;
				height: 100rpx;
				flex-direction: column;
				text-align: center;
				display: flex;
				flex-direction: column;
				justify-content: center;
				align-items: center;

				.icon {
					position: relative;
					display: inline-block;
					margin-top: 10rpx;
					width: 40rpx;
					height: 40rpx;
					font-size: 40rpx;

					image {
						width: 100%;
						height: 100%;
					}

					>view {
						height: inherit;
						display: flex;
						align-items: center;
					}

					.bar-icon {
						font-size: 42rpx;
					}
				}

				.label {
					position: relative;
					text-align: center;
					font-size: 24rpx;
					line-height: 1;
					margin-top: 12rpx;
				}
			}

			&.bulge {
				.bd {
					position: relative;
					height: 100rpx;
					flex-direction: column;
					text-align: center;

					.icon {
						margin-top: -60rpx;
						margin-bottom: 4rpx;
						border-radius: 50%;
						width: 100rpx;
						height: 102rpx;
						padding: 10rpx;
						border-top: 2rpx solid #f5f5f5;
						background-color: #fff;
						box-sizing: border-box;

						image {
							width: 100%;
							height: 100%;
							border-radius: 50%;
						}
					}

					.label {
						position: relative;
						text-align: center;
						font-size: 24rpx;
						line-height: 1.6;
						height: 40rpx;
						line-height: 40rpx;
					}
				}
			}

			.cartNumberBtn {
				position: absolute;
				top: -8rpx;
				right: -18rpx;
				width: 24rpx;
				height: 24rpx !important;
				display: flex;
				justify-content: center;
				align-items: center;
				color: #fff;
				padding: 6rpx;
				border-radius: 50%;
				z-index: 99;

				&.max {
					width: 40rpx;
					border-radius: 24rpx;
					right: -28rpx;
				}
			}
		}
	}

	.tab-bar-placeholder {
		padding-bottom: calc(constant(safe-area-inset-bottom) + 112rpx);
		padding-bottom: calc(env(safe-area-inset-bottom) + 112rpx);
	}
</style>